The demonstrations were sparked by demands for Khan’s release from jail and the resignation of the federal government over what they call rigged general elections this year.

Security forces clashed with protesters near Pakistan's parliament on Tuesday as hundreds of supporters of jailed former Prime Minister Imran Khan demanded his release in demonstrations the government said have killed four paramilitary troops.

At least six people have died in protest-related violence as supporters seeking Imran Khan’s release from prison broke through barriers meant to lock down Islamabad.